Calculate Miles per Hour

Updated 4 November 2026 · Standard formula, shown below

Average speed 60.00 mph

Average speed: 96.56 km/h; Result
Average speed: 26.82 m/s; Result
Time per mile: 1:00 min:ss; Result

This calculator finds your average speed in miles per hour. Enter the distance in miles and the time in hours and minutes, and you get mph, km/h, metres per second and the time per mile.

Formula

Speed = distance ÷ time, with time in hours = hours + minutes ÷ 60. km/h = mph × 1.609344; m/s = mph × 0.44704; minutes per mile = 60 ÷ mph.

d: distance in miles (km ÷ 1.609344)
h, m: travel time in hours and minutes

Worked Example

150 miles in 2 hours 30 minutes.

Time = 2 + 30 ÷ 60 = 2.5 h
Speed = 150 ÷ 2.5 = 60.00 mph
60 × 1.609344 = 96.56 km/h; 60 × 0.44704 = 26.82 m/s
Time per mile = 60 ÷ 60 = 1:00 minute

Limits and common mistakes

This is the average over the whole time, including stops; moving speed is higher if you stopped.
Do not enter 2.30 for 2 h 30 min; that is 2 h 18 min. Use the separate minutes field.
Averages of speeds do not add up: driving out at 30 mph and back at 60 mph averages 40 mph, not 45.
For running or cycling the time per mile is the pace; at 60 mph it is exactly one minute per mile.

Formula used

in d | Distance | mi | 150 | 0
in h | Hours | h | 2 | 0
in m | Minutes | min | 30 | 0
out mph | Average speed | mph | d / (h + m / 60) | 2
out kmh | Average speed | km/h | mph * 1.609344 | 2
out ms | Average speed | m/s | mph * 0.44704 | 2
out pace | Time per mile | min:ss | 60 / mph | time

Each line is one input (in, sel, list) or one result (out: label, unit, formula, decimals). How the calculators work

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.